Centrifugal casting machine



fr@ azz im a Patented Apr'. 14;" 1'925.

UNITED sTA'rssPATENT orifice.V

l Hf MILLSPAUGE, '0F SANDUSKY, OHIO, ASSIGNDR T0 SANDUSKY FUUNDBY e co., or sarmusxr,

OHIO, A CORPORATION 0F OHIO.

onmeniruean eas'rmd mennm.

apuestan yinea January a7, isza. serial no. altezza.l

.Be itlrnown that Lywmm'au H. MiLLsraucn, a citizen o'f the United States, and a resident of Sandusky, county of Erie, and State Aof Ohio, have invented certain new and useful Improvements in Centrifugal Casting Machines, of which theVv fo11owmgrs aspecification.

is invention relates to centrifugal casting machines and particularly to' mens for feeding molten metal in such machines.

certain of centrifugal casting machines it has been found desirable to pour the metal into the mold gradually. from one end to the other of the mold. This method of pouring the metal permitsjair to escape from the mold and'prevents air pockets or blow holes in the casting. This method has tro illustrated inF been accomplished by moving the pouring trough longitudinally of the mold :is the metal is being poured.

'I'hs'invention has for its object to provide means whereby molten vmetal can be poured into a centrifugal casting machine mold dually from one end to the other thereo without impart' relative longitudinal m ent to the mo d or to the pourmhn'thgr objects of the invention will appear from' the following description taken in connection with the drawings which form a'pxlirt of this application and in which, `g. 1 is a longitudinal sectional elevation 'of a centrifuga structed in accordance with the invention.

Fig.2',s an 'end elevation of the left h and end of the construction shown in Fig. 1.

Fig. 3 is a transverse sectional elevation talen substantially on line- 3-3 of Fig. 1, an Fi -4 is a plan'sviewof the pouring The invention brieily described consists in a -centrifugal casting machine comprising a cylindrical mold and a pouring trough extending through and disposed in the mold and' having therein a discharge opening extending longitudinally thereof and so constructed that when the trough isrotated the molten metalwill be dischar ed into the mold gradually from one end o the trough ,to the other thereof. In the Varticular form of the invention 4illustrate the discharge opening iii the trough is curved lon 'tudinally and extends partially arouii the l castingv machine convin the form of the invention illustrated a ring gear 15 is secured to the cylinder intermediate its ends. This gear 1s adapted to be driven from any suitable source -of power to .enable the cylinder to be rotated at the desired rate of speed.

The mold may be of any desired sha e and in the form of the invention shown t e cylinder 10 is shaped to cast a pipe having a flange at one end formed in a recess 16.

The ends of the cylinder have secured thereto plates 17 and 18 which may be bolted thereto as shown at 19.

A goulring trough 20 is used for introducing t e molten metal into the cvlinder. This trough is preferabl made in the form of a' circular or cylindrical pipe which as il1usfrom the cylinder. The bearing 23 is shown as tixedly supported on an upright or stand and 25. An additional 'standard 26 havin a-bearing 27st its outer end is' provid for the purpose of supporting the end '28 of the trough when the trough is moved lengthwise in the cylinder after the casting has been made and to permit the casting to be withdrawn from the cylinder.

The trough may be rotated in any desired manner as by a handle 29 secured to a shaft 30' which in turn is secured to the ei'id 28 of the trough. A feed hole or feed. spout 31 is preferably formed on or secured to the trough in the position shown 1n Fig. 1 to facilitate pouring the molten metal into the trough. 4

As illustrated in Figs. 1 and 4 the trough 20 has formedtherein a longitudinally ex tending discharge opening extending partially around the circumference of' the trough and being curved throughout its length preferably) in the, form of a spiral. From the showing in Fig. 4 it will be noted thatv the end-33 of the openin 32 is angularly displaced from the eng 34 thereof. Because of this fact it'will be evident that when the trough 20 is rotated to discharge the molten metal into the mold the metal will Erst bedischarged from the end 33 and will be gradually discharged from this end to the end 34 as'the trough is rotated. -It will thus be evident that meunshas been provided for gradually discharging molten metal into a mold from one end of the mold to the other end .without necessitating the longitudinal movement of the trough relative to the mold or of the mold relative to the trough. y 1 Although one specific embodiment of the Invention has been particularly illustrated and described it will be understood that the invention is capable of modification and that changes in the construction and in the arrangement of thevarious'cooperating parts may be made without departing from the spirit or scope of the invention vas expressed in the following claims. i

What I claim is:-

1. A centrifugal casting macbine'comprising a cylinder, u trough rotatably mounted Vmounted therein `und having Aa. discharge 1.

opening therein extending longitudinally of and partially around the trou 1 all portions of said opening being angu arly disposed with relation to -the axis of the cylinder.

3. A centrifugal casting. machine coniprising a cylinder, a trough rotatably mounted therein and having ,a discharge opening therein, extending longitudinally thereof and substantially spirally around a portion of the circumference thereof.

4. A centrifugal casting machine comprising a cylinder, a trough rotatable therein having a longitudinally extending curved discharge opening therein, the ends of said openingbeing angularly displaced relative to each other.

5. A rotatable trough for centrifugal casting machines ,havin `a discharge opening angularly disposed t oughout its length with relationto the axisof rotation of the trough.

In witness whereof, I have hereunto set my hand this 23rd day of Jan., 1923.-

WILLIAM H. VMJLLSPMJGH.

y 1o will first bedischarged from the end 33 and will be gradually discharged from this end to the end 34: as `the trough is rotated. -It will thus be evident that meanshas been provided for gradually discharging moltenV metal into a mold from one end of the mold to the other end Vwithout necessitating the longitudinal movement of the trough relative to the mold or of the mold relative to the trough.

Although one specific embodiment of the invention has been particularly illustrated and described it will be understood that the invention is capable of modification and that changes in the construction and in the arrangement of thevarious 'cooperating parts may be made without departing from the spirit or scope of the invention 'as expressed in the following claims.

What I claim is:- 1. A. centrifugal casting machine'comprising a cylinder, a trough rotatably mounted -therein and having a discharge opening prising a. cylinder, a `trough rotatably mounted Utherein and having Aa discharge lopening therein extending longitudinally of and partially around the trou i all portions of said opening being angu arly disposed with relation to the axis of the cylinder.

3. A centrifugal castingy machine coniprising a. cylinder', 4a trough rotatably mounted therein and having a discharn'e openin therein, extending longitudinally thereo and substantially spirally around a portion of the circumference thereof. 4. A centrifugal casting machine comprising a cylinder, a trough rotatable therein and havingl a longitudinally extending curved. discharge opening therein, the ends of said openingbeing singularly displaced relative to each other.

5. A 4rotatable trough for centrifugal casting machines Yhavin a discharge opening angularly disposed t roughout its length with relationzto the axis of rotation of the trough.-

In witness whereof, I have hereunto set my hand this 23rd day of Jan., 1923.-

WILLIAM H. MILLsPnUGH.

Certilcate of Correction.

It is hereby certified that the name of the assignee in Letters Patent No. 1,533,202, runted April 14, 1925, uponthe ap licatlon of Wllliain H. Mlllspaugh,

of Sandus Ohio, for an improvement erroneously described and specified as in entrifuoal Casting Machines# was Sandusky lvoundry & Machine 0o.,

whereas said name 'should have been described and specied as The Paper rf: Temtle Machinery Uompcmy, as shown b the records of assignments in this oilice;

andthat the said Letters Patent shou d be read with this correction therein that the same ma conform to the record .of the casein the Patent Olice.

Signed an sealedthis 12th day of May, A. D. 1925.

KARL'FENNING, Acting Commissioner of Patentet Certificate of Correction.

It is hereby certified that the name of the assignee in Letters Patent No. 1,533,202, ranted April 14, 1925, upon the application of William H. Millspaugh, of Sandusy, Ohio, for an improvement in Centrifugal Casting Machines, was erroneously described and specified as Sandusky Foundry & Machine Co, Whereas said name should have been described and specified as The Paper Temtle Machinery Company, as shown by the records of assignments in this oiice; and that the said Letters Patent should be read with this correction therein that the same may conform to the record .of the case in the Patent Office.

Signed and sealed this 12th day of May, A. D. 1925.

[wh] KARL FENNING,

Acting Commissioner of Patents. 

